Mar 16th 2017, 07:43 PM
Join Date: Mar 2017
Physics IA help
So I'm in IB physics, and to be completely honest I'm not really a science guy so I had some trouble coming up with an idea for my physics IA. I ended up doing something with radio waves because I had access to somebody who operated an amateur radio...I figured I would put together an antenna, connect it to light bulb, and try to see the effect of using different frequencies to try to power it.
Needless to say I quickly realized that I would need a massive transmitter to get it to light up so I connected an oscilloscope to the whole shebang to try to salvage some data from the experiment.
My results were that 420 and 450 Mhz waves generated the most voltage (~1mV), 440 Mhz generated the 2nd greatest (~0.6mV), and 460 and 480 Mhz generated voltages of 0.2 and 0.1 mV respectively. All of this was when the transmitter was held around 10cm from the antenna.
This data is all over the place and I don't know exactly what conclusions I could possibly draw from it. I know that I probably should have done my research before jumping in with the idea that differences in frequency will somehow affect the resulting voltage in an antenna at all, but this is all I have at this point so I would really appreciate if somebody could give me some pointers on what I could do with this data..